# Maintenance and Troubleshooting

When running ADC, you should monitor the activities of each connection agreement to ensure that proper directory replication is accomplished. Monitoring should be a part of regularly scheduled maintenance. Regular maintenance helps you keep directory replication performing optimally, and can help you keep failures and errors to a minimum.

You perform maintenance by setting up the ADC diagnostic logging and monitoring in the Windows event log. You perform troubleshooting by reading and interpreting the ADC-related events written in the event log to determine appropriate repair activities.

### Related Topics

Log Replication Events

None Logging Level

Minimum Logging Level

Medium Logging Level

Maximum Logging Level